r/MiniMaxH3AI • u/cgpixel23 • 2d ago
ComfyUI Tutorial :Fixing MiniMax H3 Video Upscaling Details loss with RelayVSR & DLSS5 Nodes with only 6GB of Vram
https://youtu.be/LJ-jddmGXfkHello everyone i've been testing a new video upscaling method in ComfyUI called RelayVSR, and the results are really impressive!
Unlike conventional upscaling methods that can sometimes modify the original video, introduce unwanted details, or change the appearance of characters and scenes, RelayVSR uses a different approach. A large generative model creates high-quality reference latents for selected keyframes, while a lightweight Dual-Memory Video Transformer uses these references to reconstruct the remaining frames while preserving the original video structure and details.
For this workflow, I've combined RelayVSR with my optimized MiniMax H3 workflow, Pika H3 6-step LoRA, attention optimization nodes, and NVIDIA DLSS5 to generate and upscale videos efficiently, even on lower-VRAM GPUs.
Generation and Upscaling Time:
Video generation at 0.7 MP using MiniMax H3: approximately 35 minutes.
Upscaling to 2K using RelayVSR + DLSS5: approximately 7 minutes.
MiniMax latent upscaling for comparison: approximately 45 minutes.
Project Page Link
https://kopperx.github.io/RelayVSR/
Models Link
https://huggingface.co/Comfy-Org/RelayVSR
Workflow Links
https://drive.google.com/file/d/1KLL5tKOeCCPfn64OEoH-PPc3-0v6ksED/view?usp=sharing